Endogenous opioid peptides function as neurotransmitters that make Zog happy, still…. Gollum had the answer to the quest:
“Alive without breath,
As cold as death;
Never thirsty, ever drinking,
All in mail never clinking.” tw

Ah.. that’s Water-Ouzel… little bird that dives n the water to get his dinner, that aside, I would be happy to help you.
The way I see it Zog was good in his day, willow rod, bone hook, victory dance, flinging fecal matter at passers by. There is nothing wrong with this and I respect it, but the sun may have set on poor ol’ Zog. In the de-evolutionary process, Gollum has Zog by the scrotum. Catches fish with his teeth ( has just a few)…only wears a loin cloth, what a role model! You say who could do such a feat? Read James Proseck “Fishing the 41st Parallel”, Proseck’s buddy actually dawns mask and a snorkel to catch his quarry, its sheer balls out crazy stuff!